/*
 * ORETransformer.java
 *
 * Copyright (c) 2008, Hewlett-Packard Company and Massachusetts
 * Institute of Technology.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * - Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * - Neither the name of the Hewlett-Packard Company nor the name of the
 * Massachusetts Institute of Technology nor the names of their
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */
package org.dspace.foresite;

import java.io.InputStream;
import java.io.ByteArrayInputStream;
import java.io.OutputStream;
import java.io.IOException;

/**
 * @Author Richard Jones
 */
public class ORETransformer
{
    public static ResourceMapDocument transformToDocument(String source, String target, InputStream is)
            throws OREParserException, ORESerialiserException
    {
        OREParser parser = OREParserFactory.getInstance(source);
        ResourceMap rem = parser.parse(is);
        ORESerialiser serialiser = ORESerialiserFactory.getInstance(target);
        ResourceMapDocument rmd = serialiser.serialise(rem);
        return rmd;
    }

    public static InputStream transformToStream(String source, String target, InputStream is)
            throws OREParserException, ORESerialiserException
    {
        ResourceMapDocument rmd = ORETransformer.transformToDocument(source, target, is);
        byte[] bytes = rmd.getSerialisation().getBytes();
        ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
        return bais;
    }

	public static void transformToStream(String source, String target, InputStream is, OutputStream os)
			throws OREParserException, ORESerialiserException
	{
		try
		{
			ResourceMapDocument rmd = ORETransformer.transformToDocument(source, target, is);
			byte[] bytes = rmd.getSerialisation().getBytes();
			for (int i = 0 ; i < bytes.length; i++)
			{
				os.write(bytes[i]);
			}
		}
		catch (IOException e)
		{
			throw new ORESerialiserException("Problem construcing output stream");
		}
	}
}
